3	4				6
				5
					1
1
	2
6				4	5

Difficulty: Very easy (0)

			5	3
1	6			4
		1
			3
	2			6	3
	1	2

Difficulty: Super easy (0)

		6
	1				2
			4
		4
6				3
			6

Difficulty: Easy (0)

				4
	3				1
1
					5
6				2
	1

Difficulty: Easy (0)